Failure protection apparatus and system
US8755420B2 · kind B2 · utility
1Cited by
6References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 11, 2008 |
| Grant date | Jun 17, 2014 |
| Priority date | — |
| Expiry date | Dec 9, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2018/00636
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A safety and interlock circuit for use with devices which could cause injury if an error condition causes improper operation. A control program executing on a processor monitors a variety of device conditions, including pulse over-duration threshold, diode over-current threshold, pulse lock-out duration, temperature threshold, and pulse repetition frequency limit, and prevents the laser from firing if an error condition is detected. In addition, the error conditions are logged in a persistent memory to facilitate subsequent diagnosis and correction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.